China Disposable Medical Supplies, Medical Consumables Supplier
Introduction
Cellulose dialysis bags are tools used for the separation and purification of biological macromolecules such as proteins and nucleic acids. They are semi-permeable membrane bags made of cellulose material, achieving the separation purpose by controlling the exchange of substances inside and outside the bags. Based on the properties of semi-permeable membranes, they only allow small molecules (such as water, salt ions, etc.) to pass freely while retaining macromolecules inside the bags. They are widely used in laboratory research, biopharmaceutical and other fields and are crucial consumables for dialysis experiments.
Features
- Good Dialysis Performance: Cellulose dialysis bags have an appropriate pore size, which can effectively retain the target macromolecules while ensuring the rapid exchange of small-molecule substances, thus ensuring dialysis efficiency. For example, in the protein desalting experiment, salts can be accurately removed while proteins are retained.
- High Chemical Stability: Cellulose dialysis bags are made of cellulose, they can remain stable in many common chemical environments and can tolerate various buffer systems, such as phosphate buffer and Tris-HCl buffer, without reacting chemically with the components therein, thus ensuring the reliability of the dialysis process.
- Superior Physical Properties: Cellulose dialysis bags have certain strength and toughness and are not easy to break or be damaged during the operation process. They can work normally even under dynamic dialysis conditions such as stirring and shaking. Meanwhile, the material is soft, facilitating operations like tying knots and sealing to ensure that the samples inside the dialysis bags will not leak.
- Diverse Specifications: There are various molecular weight cut-offs (MWCO) available for selection, such as 1000 Da, 3500 Da, 10000 Da, etc. You can flexibly choose according to the size of the molecules that need to be dialyzed. Moreover, there are also different lengths and diameters to adapt to the processing of samples with different volumes.
Parameters
- Material: Cellulose dialysis bags
- Molecular Weight Cut-Off (MWCO): Multiple options available, such as 1000 Da, 3500 Da, 10000 Da, etc.
- Length: Common specifications include 10 cm, 20 cm, 30 cm, etc.
- Diameter: Such as 5 mm, 10 mm, 15 mm, etc.
- Applicable Ambient Temperature: Generally, they can be used normally within the range of 4 – 40 °C.
